Enermax has just expanded their NAXN 82+ series of power supplies with the 80 Plus Bronze certification to include three new models, 450 W, 550 W, and 650 W. (This series also has 750 W and 850 W models.) However, you need to pay attention, as Enermax also has two other series called NAXN, the “plain” NAXN, also known as Tomahawk II, featuring 350 W, 450 W, and 500 W models, with no 80 Plus certification, and the NAXN 80+, featuring 350 W, 450 W, 500 W, and 600 W models, with the standard 80 Plus certification. To make things more confusing, the 550 W model that we are reviewing is sold as “NAXN” (and not “NAXN 82+”). Anyway, let’s see if this new power supply is a good pick.

Even though Enermax has its own factories, the NAXN 82+ 550 W is manufactured by a different company, CWT, which is the same company behind the NAXN 80+ models and, in fact, these new NAXN82+ models use the same platform as the NAXN 80+ models. It is important to know that the 750 W and 850 W models are manufactured by yet another company, High Power, and have a modular cabling system, a feature not available on the latest models. So, we have four different kinds of power supplies (NAXN, NAXN 80+, NAXN 82+ with modular cabling, and NAXN 82+ without modular cabling) using the same name. Some manufacturers simply can’t understand that using the same name for four different product lines is not a good marketing policy.